Man pages matching name gpdasm in section 1:

gpdasm.1.en	debian 10 / gputils
gpdasm.1.fr	debian 10 / gputils
gpdasm.1.en	debian 11 / gputils
gpdasm.1.fr	debian 11 / gputils
gpdasm.1.en	debian 12 / gputils
gpdasm.1.fr	debian 12 / gputils